After several years of searching I have finally found a gentleman who makes steel threaded lens caps for the Lyman and Unertl type target scopes. I wanted to pass this information on to any here who might be interested. His name is Jack Baker and he is located in Ohio. His email address is: jjbaker
woh.rr.com. The workmanship is superb. I hope I'm not breaking any forum rules but wanted to pass this information on to my fellow forum members. Thank you. Bill.